This is a log from an oil or gas well in the Bureau of Economic Geology's Geophysical Log Facility. API Number: 421213173100 Top Depth: 4950 Ft. Bottom Depth: 9250 Ft. lease_name: LITTLE BROOK EST D #4 reservoir_name: NEWARK EAST BARNETT SHALE operator_name: TEJAS WESTERN CORP log_source_name: RRC datum_name: Unknown state_name: Texas county_name: Denton